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Comparison · 2 models · Updated Nov 2, 2026

Grok 4.20 (Non-Reasoning) vs Nemotron 3 Super 120B A12B

Too close to call on our weighted score (Nemotron 3 Super 120B A12B 54, Grok 4.20 (Non-Reasoning) 52). The right pick depends on what you value most.

  1. xAI

    Grok 4.20 (Non-Reasoning)

    Released Mar 9, 2026

    52/100
    • ECI—
    • Price$1.25 / $2.50
    • Context1M
    Full specs Remove Grok 4.20 (Non-Reasoning)

  2. NVIDIA

    Nemotron 3 Super 120B A12B

    Released Mar 11, 2026

    54/100
    • ECI—
    • Price$0.15 / $0.65
    • Context262K
    Full specs Remove Nemotron 3 Super 120B A12B

  3. Add a model

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01 — Verdict

Too close to call

It is close. Our weighted score puts them within 2 points (Nemotron 3 Super 120B A12B 54/100, Grok 4.20 (Non-Reasoning) 52/100), so choose by what matters most for your work: Nemotron 3 Super 120B A12B on price and Grok 4.20 (Non-Reasoning) for long inputs. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

  • CapabilityNot enough dataNo independent benchmark covers every model here yet
  • Lowest priceNemotron 3 Super 120B A12BNemotron 3 Super 120B A12B $0.275 · Grok 4.20 (Non-Reasoning) $1.56 per 1M tokens (3:1 blend)
  • Longest contextGrok 4.20 (Non-Reasoning)Grok 4.20 (Non-Reasoning) 1,000,000 · Nemotron 3 Super 120B A12B 262,144 tokens
  • Widest inputsGrok 4.20 (Non-Reasoning)Grok 4.20 (Non-Reasoning): Text, Images, PDFs · Nemotron 3 Super 120B A12B: Text
  • Self-hostingNemotron 3 Super 120B A12BPublishes downloadable weights
How the score is built
MeasureWeightGrok 4.20 (Non-Reasoning)Nemotron 3 Super 120B A12B
Price50%3973
Inputs & features30%7035
Context window20%6037
Overall100%52/10054/100

Left out because at least one model lacks the data: capability. The remaining weights were rescaled.

02 — Side by side

Every spec in one table

Highlighted cells lead their row. Dashes mean the data is not published.

Grok 4.20 (Non-Reasoning) vs Nemotron 3 Super 120B A12B specifications side by side
SpecificationGrok 4.20 (Non-Reasoning)xAINemotron 3 Super 120B A12BNVIDIA
Capability
Capabilities Index (ECI)——
ECI rank——
Price per million tokens
Input$1.25$0.15 (best)
Output$2.50$0.65 (best)
Cached input$0.20—
Blended (3:1)$1.56$0.275 (best)
Long-context rateOver 200K: $2.50 / $5.00Same rate
Price sourceOfficial xAI APIMedian of 16 providers
Limits
Context window1,000,000 tokens (best)262,144 tokens
Max output30,000 tokens262,144 tokens (best)
Inputs and features
TextYesYes
ImagesYesNo
PDFsYesNo
AudioNoNo
VideoNoNo
ReasoningNoYes
Tool callingYesYes
Structured outputYesNo
Availability
WeightsProprietaryOpen
API model IDgrok-4.20-0309-non-reasoning—
API providers1318 (best)
ReleasedMar 9, 2026Mar 11, 2026
Knowledge cutoff—Jun 2025
03 — Cost

What would a month cost?

Enter your expected volume in millions of tokens. List prices only; caching and batch discounts would lower these.

  • Grok 4.20 (Non-Reasoning)$17.50
  • Nemotron 3 Super 120B A12B$2.80
04 — Questions

Which should you choose?

Which is better: Grok 4.20 (Non-Reasoning) or Nemotron 3 Super 120B A12B?

It is close. Our weighted score puts them within 2 points (Nemotron 3 Super 120B A12B 54/100, Grok 4.20 (Non-Reasoning) 52/100), so choose by what matters most for your work: Nemotron 3 Super 120B A12B on price and Grok 4.20 (Non-Reasoning) for long inputs. The score weighs price 50%, inputs & features 30%, context window 20%. None of the shared benchmarks cover every model here yet, so capability is left out of this verdict.

Which is cheaper, Grok 4.20 (Non-Reasoning) or Nemotron 3 Super 120B A12B?

Nemotron 3 Super 120B A12B is cheaper at $0.15 input / $0.65 output per million tokens (median across 16 API providers). Grok 4.20 (Non-Reasoning) costs $1.25 input / $2.50 output per million tokens (official xAI API price). At a typical mix of three input tokens to one output token, that is $0.275 per million tokens for Nemotron 3 Super 120B A12B versus $1.56 for Grok 4.20 (Non-Reasoning) (5.7× as much).

Which scores higher on benchmarks?

There is no independent benchmark that covers both models yet. Grok 4.20 (Non-Reasoning) has not been scored yet and Nemotron 3 Super 120B A12B has not been scored yet.

Which is better for coding?

There are no published SWE-bench Verified results for Grok 4.20 (Non-Reasoning) and Nemotron 3 Super 120B A12B yet, so there is no like-for-like coding score. Test both on a sample of your own tasks. Both support tool calling for agent workflows.

Which has the bigger context window?

Grok 4.20 (Non-Reasoning) has the largest context window at 1,000,000 tokens, against 262,144 for Nemotron 3 Super 120B A12B. Maximum output per response: Grok 4.20 (Non-Reasoning) up to 30,000, Nemotron 3 Super 120B A12B up to 262,144 tokens.

Which can read images, PDFs, audio or video?

Grok 4.20 (Non-Reasoning) accepts text, images and PDFs; Nemotron 3 Super 120B A12B accepts text. Grok 4.20 (Non-Reasoning) handles the widest range of inputs.

Are any of these open source?

Nemotron 3 Super 120B A12B publishes its weights and can be self-hosted; Grok 4.20 (Non-Reasoning) is proprietary.

Which is newer?

Nemotron 3 Super 120B A12B is the newest, released Mar 11, 2026. Grok 4.20 (Non-Reasoning) came out Mar 9, 2026. Knowledge cutoff: Nemotron 3 Super 120B A12B Jun 2025.

How do you decide the winner?

Each model gets a 0–100 score on capability (50%, independent benchmark results); price (25%, blended price per million tokens (3 input : 1 output), log scale); inputs & features (15%, image, PDF, audio and video input, tool calling, structured output and reasoning); context window (10%, maximum tokens per request, log scale). Dimensions missing for any model are dropped and the remaining weights rescaled, so every model is judged on the same evidence. Specs and prices come from public model listings and the labs’ own API pages; capability scores come from independent benchmark runs. Data updated Nov 2, 2026.

05 — Keep comparing

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